Safety attachment for hand fed machines



July 20, 1943. B. WACHS 2,324,305

SAFETY ATTACHMENT FOR HAND FED MACHINES Fiied Dec 1e 1941 nnnnnnnnm W fa/:4 w @21 14 TTOR/YEY5 F' is provided with laterally projecting trunnions 24 respectively engaging the side arms l vand H. The spring 20 functions to normally retract the guard member J rearwardly to an out-of-theway position when the movable tool holder F and tool H are raised and the tools are separated from each other.

The trunnions 24 engaging the side arms l0 and H of the guard member 'J effect forward swinging of said guard member between and forwardly beyond the edges H and D as the movable tool advances towards and engages with thes fixed tool 'D. It thus follows that if the hand 7 of the operator is located between-the tools as the movable tool approaches the fixed tool, ei-

V ther the connecting, bight' portion [2 orfarms l0 and ll of the guard member J will engage with and push or displace the operator hand when so located from between the edges to avoid possibility of injury. As the movable tool is retracted or ascendathe trunnions 24 of the actuating member 23 will permit the spring 20 to swing the guardmember J rearwardly; to retract the sameto its 'rearwardly disposed outof-the-way position.

1 From the foregoing it will thus be seen that the safety attachment consists-of the actuator member 23 which is secured in any desired man-V ner; such as by screws'or bolts 25, to the re'cip-' rocatory tool holder F, the secu'r'ement of bear-' ingmembers l to the head E of the machine andwthe' anchorage as at 2| to the rear terminal of the spring 20. When applied to the machine, the safety device functions to positively insure displacement of the operators hand if located between the fixed and movable tools as they approach each other so as to prevent injury by failure of'the operator to remove his hands in time.

In the modified form of the invention mus: trated in Fig. 5 of the drawing, the spring iseliminated and in place of the trunnions 24, eye

members 24A respectively surround the side arms lll 'and H and are carried by and protrude laterally from the actuator member 23 and funcmounted on a stationary part of the machine 7 for swinging movement of th guard member from an inactive out-of-the-way position at one side of the path of movement of the movable r tool between said tools as the movable tool approaches the fixed tool and beyond the path of movement of the movable tool to the opposite side thereof so as to engage with and displace the operators hand located between the tools.

7 3. In ahand fed machine ofthe type which embodies a fixed tool and a tool movable towards a and away from the fixed tool, a safety device for protecting'the hands of the operator feeding the 1 stock between the tools including a guard member actuated by the machine in timed relation with the movement of the movable tool and i mounted on a stationary part of the machine for tion'upon downward movement of the movable V itool to swing the guard member forwardly and upon upward movement to swing the guard member rearwardly. In all other respects, this formof' the invention functions'in a similar manner torthatvdescribed for the previous form of the invention.

What is claimed is:

1. In a hand fed machine of the type intwhich a pair of tools are mounted for relative move mer t towards and away from each other, a safetydevice for protecting the hands of the operatorfeeding the stock between the tools including a guard member actuated by the machine in timed relation with the relative movementof the tools and mounted ona stationary part of the machine for swinging movement of said guard member from an inactive out-of-the-way position'at one side of the path of relative movement of the tools between said tools asjthey approach each other and beyond said path to the opposite side thereof so as to engage with and displace the operators hand located between the tools.

2.'In a hand fed machine of the type which embodiesa fixed tool and a tool movable towards and away from the fixed tool; a safety device for protecting the hands of the operator feeding the stock between the tools including a guard member actuated by themachine in timed'relation-With the movement of the movable tool and swinging movement of the guard member from an inactive out-of-the-way position at one side of the path of movement of the movable tool between said tools as the movable tool approaches the fixed tool and beyond the path o'f'movement of themovable tool to'the opposite siderthe'reof' so as toengage with and displace'the operator's hand located between the tools, the actuation of'said guard member eifecting'retractivemove-." ment thereof between the same to the out-of-the i way position as the movable'tool is retracted from thefixed tool. 7

4. In a machine .head'having a reciprocatory tool holder supporting a tool movable towards'the fixed tool, a safety attachment for said machine for protecting the hands of an operator feeding stock to the ma chine including a U-shaped guard bail having i upright side arms and a bight connecting'the' lower endsthereof, bearing'means secured'to the machine head, a rock'shaft mounted iii-said bearing meanstto whichthe sidearms of the guard bail are secured'for mounting .the'guard" bail for swinging movement to'and from an in movable tool approaches the fixed tool.

5. In a machine of the hand fed type which embodies a base supporting a fixed tool and Ya head having a reciprocatory tool holder supporting a tool movable towards the fixed tool,-a safety attachment for said machine forprotecting the I V hands pofi an operator feeding stock to thema chine including'a-U shaped guard bail having upright side armsand a bight connecting the" lower ends thereof, bearing means securedto the machine head, a rock shaft mounted in saidbearl ing means towhich the side arms of the 'guard' b'ail are secured for mounting'the guard bailfor swinging movement to and from aninactive outof-the-way position at one side-of the path of movement of the movable tool between said tools and beyond the sameat the opposite side thereof,

and means secured to the reciprocatory tool hold-f er and engaging the side arms of the bail :fofi effecting swinging of the same to the inactive out-'of-the-way position and'from said position to engage with and displace thehand of anop- V erator locatedbetween the tools as the movable 'tool approaches'the fixed tool; j

or the handfed type which' embodies a base supporting a fixed tool and a 6. In a machine of the hand fed type which embodies a base supporting a fixed tool and a head having a reciprocatory tool holder supporting a tool movable towards the fixed tool, a safety attachment for said machine for protecting the hands of an operator feeding stock to the machine includingja U-shaped guard bail having upright side arms and a bight connecting the lower ends thereof, bearing means secured to the machine head, rock shaft mounted in said bearing means having openings adjacent the opposite ends thereof through which the side arms of the guard bail extend, set screws carried by the rock shaft engaging said side arms to adjustably sccure the guard bail to the rock shaft and for mounting the guard bail for swinging movement to and from an inactive out-of-the-way position at one side of the path of movement of the movable tool between said tools and beyond the same at the opposite side thereof, means for normally retracting the guard bail to its inactive position and means secured to the reciprocatory tool holder and engaging the side arms of the guard bail for swinging the same to engage with and dis place the hand of an operator located between the tools as the movable tool approaches the fixed tool.

BENJAMIN WACHS. 

